000 00345nam a2200145Ia 4500
020 _a0340804777
082 _b1801
_a540
100 _a"Benfield Frank"
245 0 _aScience scope Chemistry
260 _bHodder & Stoughton
_aPakistan
_c2002
300 _a187
944 _cTR
999 _c698840
_d698840